var ERROR_CONF = {
  KEY_ERR: 311,
  KEY_ERR_MSG: 'key格式错误',
  PARAM_ERR: 310,
  PARAM_ERR_MSG: '请求参数信息有误',
  SYSTEM_ERR: 600,
  SYSTEM_ERR_MSG: '系统错误',
  WX_ERR_CODE: 1000,
  WX_OK_CODE: 200
};
var BASE_URL = 'https://apis.map.qq.com/ws/';
var URL_SEARCH = BASE_URL + 'place/v1/search';
var URL_SUGGESTION = BASE_URL + 'place/v1/suggestion';
var URL_GET_GEOCODER = BASE_URL + 'geocoder/v1/';
var URL_CITY_LIST = BASE_URL + 'district/v1/list';
var URL_AREA_LIST = BASE_URL + 'district/v1/getchildren';
var URL_DISTANCE = BASE_URL + 'distance/v1/';
var URL_DIRECTION = BASE_URL + 'direction/v1/';
var MODE = {
  driving: 'driving',
  transit: 'transit'
};
var EARTH_RADIUS = 6378136.49;
var Utils = {
  safeAdd(x, y) {
    var lsw = (x & 0xffff) + (y & 0xffff);
    var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
    return (msw << 16) | (lsw & 0xffff)
  },
  bitRotateLeft(num, cnt) {
    return (num << cnt) | (num >>> (32 - cnt))
  },
  md5cmn(q, a, b, x, s, t) {
    return this.safeAdd(this.bitRotateLeft(this.safeAdd(this.safeAdd(a, q), this.safeAdd(x, t)), s), b)
  },
  md5ff(a, b, c, d, x, s, t) {
    return this.md5cmn((b & c) | (~b & d), a, b, x, s, t)
  },
  md5gg(a, b, c, d, x, s, t) {
    return this.md5cmn((b & d) | (c & ~d), a, b, x, s, t)
  },
  md5hh(a, b, c, d, x, s, t) {
    return this.md5cmn(b ^ c ^ d, a, b, x, s, t)
  },
  md5ii(a, b, c, d, x, s, t) {
    return this.md5cmn(c ^ (b | ~d), a, b, x, s, t)
  },
  binlMD5(x, len) {
    x[len >> 5] |= 0x80 << (len % 32);
    x[((len + 64) >>> 9 << 4) + 14] = len;
    var i;
    var olda;
    var oldb;
    var oldc;
    var oldd;
    var a = 1732584193;
    var b = -271733879;
    var c = -1732584194;
    var d = 271733878;
    for (i = 0; i < x.length; i += 16) {
      olda = a;
      oldb = b;
      oldc = c;
      oldd = d;
      a = this.md5ff(a, b, c, d, x[i], 7, -680876936);
      d = this.md5ff(d, a, b, c, x[i + 1], 12, -389564586);
      c = this.md5ff(c, d, a, b, x[i + 2], 17, 606105819);
      b = this.md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
      a = this.md5ff(a, b, c, d, x[i + 4], 7, -176418897);
      d = this.md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
      c = this.md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
      b = this.md5ff(b, c, d, a, x[i + 7], 22, -45705983);
      a = this.md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
      d = this.md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
      c = this.md5ff(c, d, a, b, x[i + 10], 17, -42063);
      b = this.md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
      a = this.md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
      d = this.md5ff(d, a, b, c, x[i + 13], 12, -40341101);
      c = this.md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
      b = this.md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
      a = this.md5gg(a, b, c, d, x[i + 1], 5, -165796510);
      d = this.md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
      c = this.md5gg(c, d, a, b, x[i + 11], 14, 643717713);
      b = this.md5gg(b, c, d, a, x[i], 20, -373897302);
      a = this.md5gg(a, b, c, d, x[i + 5], 5, -701558691);
      d = this.md5gg(d, a, b, c, x[i + 10], 9, 38016083);
      c = this.md5gg(c, d, a, b, x[i + 15], 14, -660478335);
      b = this.md5gg(b, c, d, a, x[i + 4], 20, -405537848);
      a = this.md5gg(a, b, c, d, x[i + 9], 5, 568446438);
      d = this.md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
      c = this.md5gg(c, d, a, b, x[i + 3], 14, -187363961);
      b = this.md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
      a = this.md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
      d = this.md5gg(d, a, b, c, x[i + 2], 9, -51403784);
      c = this.md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
      b = this.md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
      a = this.md5hh(a, b, c, d, x[i + 5], 4, -378558);
      d = this.md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
      c = this.md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
      b = this.md5hh(b, c, d, a, x[i + 14], 23, -35309556);
      a = this.md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
      d = this.md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
      c = this.md5hh(c, d, a, b, x[i + 7], 16, -155497632);
      b = this.md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
      a = this.md5hh(a, b, c, d, x[i + 13], 4, 681279174);
      d = this.md5hh(d, a, b, c, x[i], 11, -358537222);
      c = this.md5hh(c, d, a, b, x[i + 3], 16, -722521979);
      b = this.md5hh(b, c, d, a, x[i + 6], 23, 76029189);
      a = this.md5hh(a, b, c, d, x[i + 9], 4, -640364487);
      d = this.md5hh(d, a, b, c, x[i + 12], 11, -421815835);
      c = this.md5hh(c, d, a, b, x[i + 15], 16, 530742520);
      b = this.md5hh(b, c, d, a, x[i + 2], 23, -995338651);
      a = this.md5ii(a, b, c, d, x[i], 6, -198630844);
      d = this.md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
      c = this.md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
      b = this.md5ii(b, c, d, a, x[i + 5], 21, -57434055);
      a = this.md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
      d = this.md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
      c = this.md5ii(c, d, a, b, x[i + 10], 15, -1051523);
      b = this.md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
      a = this.md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
      d = this.md5ii(d, a, b, c, x[i + 15], 10, -30611744);
      c = this.md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
      b = this.md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
      a = this.md5ii(a, b, c, d, x[i + 4], 6, -145523070);
      d = this.md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
      c = this.md5ii(c, d, a, b, x[i + 2], 15, 718787259);
      b = this.md5ii(b, c, d, a, x[i + 9], 21, -343485551);
      a = this.safeAdd(a, olda);
      b = this.safeAdd(b, oldb);
      c = this.safeAdd(c, oldc);
      d = this.safeAdd(d, oldd)
    }
    return [a, b, c, d]
  },
  binl2rstr(input) {
    var i;
    var output = '';
    var length32 = input.length * 32;
    for (i = 0; i < length32; i += 8) {
      output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xff)
    }
    return output
  },
  rstr2binl(input) {
    var i;
    var output = [];
    output[(input.length >> 2) - 1] = undefined;
    for (i = 0; i < output.length; i += 1) {
      output[i] = 0
    }
    var length8 = input.length * 8;
    for (i = 0; i < length8; i += 8) {
      output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << (i % 32)
    }
    return output
  },
  rstrMD5(s) {
    return this.binl2rstr(this.binlMD5(this.rstr2binl(s), s.length * 8))
  },
  rstrHMACMD5(key, data) {
    var i;
    var bkey = this.rstr2binl(key);
    var ipad = [];
    var opad = [];
    var hash;
    ipad[15] = opad[15] = undefined;
    if (bkey.length > 16) {
      bkey = this.binlMD5(bkey, key.length * 8)
    }
    for (i = 0; i < 16; i += 1) {
      ipad[i] = bkey[i] ^ 0x36363636;
      opad[i] = bkey[i] ^ 0x5c5c5c5c
    }
    hash = this.binlMD5(ipad.concat(this.rstr2binl(data)), 512 + data.length * 8);
    return this.binl2rstr(this.binlMD5(opad.concat(hash), 512 + 128))
  },
  rstr2hex(input) {
    var hexTab = '0123456789abcdef';
    var output = '';
    var x;
    var i;
    for (i = 0; i < input.length; i += 1) {
      x = input.charCodeAt(i);
      output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f)
    }
    return output
  },
  str2rstrUTF8(input) {
    return unescape(encodeURIComponent(input))
  },
  rawMD5(s) {
    return this.rstrMD5(this.str2rstrUTF8(s))
  },
  hexMD5(s) {
    return this.rstr2hex(this.rawMD5(s))
  },
  rawHMACMD5(k, d) {
    return this.rstrHMACMD5(this.str2rstrUTF8(k), str2rstrUTF8(d))
  },
  hexHMACMD5(k, d) {
    return this.rstr2hex(this.rawHMACMD5(k, d))
  },
  md5(string, key, raw) {
    if (!key) {
      if (!raw) {
        return this.hexMD5(string)
      }
      return this.rawMD5(string)
    }
    if (!raw) {
      return this.hexHMACMD5(key, string)
    }
    return this.rawHMACMD5(key, string)
  },
  getSig(requestParam, sk, feature, mode) {
    var sig = null;
    var requestArr = [];
    Object.keys(requestParam).sort().forEach(function(key) {
      requestArr.push(key + '=' + requestParam[key])
    });
    if (feature == 'search') {
      sig = '/ws/place/v1/search?' + requestArr.join('&') + sk
    }
    if (feature == 'suggest') {
      sig = '/ws/place/v1/suggestion?' + requestArr.join('&') + sk
    }
    if (feature == 'reverseGeocoder') {
      sig = '/ws/geocoder/v1/?' + requestArr.join('&') + sk
    }
    if (feature == 'geocoder') {
      sig = '/ws/geocoder/v1/?' + requestArr.join('&') + sk
    }
    if (feature == 'getCityList') {
      sig = '/ws/district/v1/list?' + requestArr.join('&') + sk
    }
    if (feature == 'getDistrictByCityId') {
      sig = '/ws/district/v1/getchildren?' + requestArr.join('&') + sk
    }
    if (feature == 'calculateDistance') {
      sig = '/ws/distance/v1/?' + requestArr.join('&') + sk
    }
    if (feature == 'direction') {
      sig = '/ws/direction/v1/' + mode + '?' + requestArr.join('&') + sk
    }
    sig = this.md5(sig);
    return sig
  },
  location2query(data) {
    if (typeof data == 'string') {
      return data
    }
    var query = '';
    for (var i = 0; i < data.length; i++) {
      var d = data[i];
      if (!!query) {
        query += ';'
      }
      if (d.location) {
        query = query + d.location.lat + ',' + d.location.lng
      }
      if (d.latitude && d.longitude) {
        query = query + d.latitude + ',' + d.longitude
      }
    }
    return query
  },
  rad(d) {
    return d * Math.PI / 180.0
  },
  getEndLocation(location) {
    var to = location.split(';');
    var endLocation = [];
    for (var i = 0; i < to.length; i++) {
      endLocation.push({
        lat: parseFloat(to[i].split(',')[0]),
        lng: parseFloat(to[i].split(',')[1])
      })
    }
    return endLocation
  },
  getDistance(latFrom, lngFrom, latTo, lngTo) {
    var radLatFrom = this.rad(latFrom);
    var radLatTo = this.rad(latTo);
    var a = radLatFrom - radLatTo;
    var b = this.rad(lngFrom) - this.rad(lngTo);
    var distance = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLatFrom) * Math.cos(radLatTo) * Math.pow(Math.sin(b / 2), 2)));
    distance = distance * EARTH_RADIUS;
    distance = Math.round(distance * 10000) / 10000;
    return parseFloat(distance.toFixed(0))
  },
  getWXLocation(success, fail, complete) {
    wx.getLocation({
      type: 'gcj02',
      success: success,
      fail: fail,
      complete: complete
    })
  },
  getLocationParam(location) {
    if (typeof location == 'string') {
      var locationArr = location.split(',');
      if (locationArr.length === 2) {
        location = {
          latitude: location.split(',')[0],
          longitude: location.split(',')[1]
        }
      } else {
        location = {}
      }
    }
    return location
  },
  polyfillParam(param) {
    param.success = param.success || function() {};
    param.fail = param.fail || function() {};
    param.complete = param.complete || function() {}
  },
  checkParamKeyEmpty(param, key) {
    if (!param[key]) {
      var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + key + '参数格式有误');
      param.fail(errconf);
      param.complete(errconf);
      return true
    }
    return false
  },
  checkKeyword(param) {
    return !this.checkParamKeyEmpty(param, 'keyword')
  },
  checkLocation(param) {
    var location = this.getLocationParam(param.location);
    if (!location || !location.latitude || !location.longitude) {
      var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + ' location参数格式有误');
      param.fail(errconf);
      param.complete(errconf);
      return false
    }
    return true
  },
  buildErrorConfig(errCode, errMsg) {
    return {
      status: errCode,
      message: errMsg
    }
  },
  handleData(param, data, feature) {
    if (feature == 'search') {
      var searchResult = data.data;
      var searchSimplify = [];
      for (var i = 0; i < searchResult.length; i++) {
        searchSimplify.push({
          id: searchResult[i].id || null,
          title: searchResult[i].title || null,
          latitude: searchResult[i].location && searchResult[i].location.lat || null,
          longitude: searchResult[i].location && searchResult[i].location.lng || null,
          address: searchResult[i].address || null,
          category: searchResult[i].category || null,
          tel: searchResult[i].tel || null,
          adcode: searchResult[i].ad_info && searchResult[i].ad_info.adcode || null,
          city: searchResult[i].ad_info && searchResult[i].ad_info.city || null,
          district: searchResult[i].ad_info && searchResult[i].ad_info.district || null,
          province: searchResult[i].ad_info && searchResult[i].ad_info.province || null
        })
      }
      param.success(data, {
        searchResult: searchResult,
        searchSimplify: searchSimplify
      })
    } else if (feature == 'suggest') {
      var suggestResult = data.data;
      var suggestSimplify = [];
      for (var i = 0; i < suggestResult.length; i++) {
        suggestSimplify.push({
          adcode: suggestResult[i].adcode || null,
          address: suggestResult[i].address || null,
          category: suggestResult[i].category || null,
          city: suggestResult[i].city || null,
          district: suggestResult[i].district || null,
          id: suggestResult[i].id || null,
          latitude: suggestResult[i].location && suggestResult[i].location.lat || null,
          longitude: suggestResult[i].location && suggestResult[i].location.lng || null,
          province: suggestResult[i].province || null,
          title: suggestResult[i].title || null,
          type: suggestResult[i].type || null
        })
      }
      param.success(data, {
        suggestResult: suggestResult,
        suggestSimplify: suggestSimplify
      })
    } else if (feature == 'reverseGeocoder') {
      var reverseGeocoderResult = data.result;
      var reverseGeocoderSimplify = {
        address: reverseGeocoderResult.address || null,
        latitude: reverseGeocoderResult.location && reverseGeocoderResult.location.lat || null,
        longitude: reverseGeocoderResult.location && reverseGeocoderResult.location.lng || null,
        adcode: reverseGeocoderResult.ad_info && reverseGeocoderResult.ad_info.adcode || null,
        city: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.city || null,
        district: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.district || null,
        nation: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.nation || null,
        province: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.province || null,
        street: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.street || null,
        street_number: reverseGeocoderResult.address_component && reverseGeocoderResult.address_component.street_number || null,
        recommend: reverseGeocoderResult.formatted_addresses && reverseGeocoderResult.formatted_addresses.recommend || null,
        rough: reverseGeocoderResult.formatted_addresses && reverseGeocoderResult.formatted_addresses.rough || null
      };
      if (reverseGeocoderResult.pois) {
        var pois = reverseGeocoderResult.pois;
        var poisSimplify = [];
        for (var i = 0; i < pois.length; i++) {
          poisSimplify.push({
            id: pois[i].id || null,
            title: pois[i].title || null,
            latitude: pois[i].location && pois[i].location.lat || null,
            longitude: pois[i].location && pois[i].location.lng || null,
            address: pois[i].address || null,
            category: pois[i].category || null,
            adcode: pois[i].ad_info && pois[i].ad_info.adcode || null,
            city: pois[i].ad_info && pois[i].ad_info.city || null,
            district: pois[i].ad_info && pois[i].ad_info.district || null,
            province: pois[i].ad_info && pois[i].ad_info.province || null
          })
        }
        param.success(data, {
          reverseGeocoderResult: reverseGeocoderResult,
          reverseGeocoderSimplify: reverseGeocoderSimplify,
          pois: pois,
          poisSimplify: poisSimplify
        })
      } else {
        param.success(data, {
          reverseGeocoderResult: reverseGeocoderResult,
          reverseGeocoderSimplify: reverseGeocoderSimplify
        })
      }
    } else if (feature == 'geocoder') {
      var geocoderResult = data.result;
      var geocoderSimplify = {
        title: geocoderResult.title || null,
        latitude: geocoderResult.location && geocoderResult.location.lat || null,
        longitude: geocoderResult.location && geocoderResult.location.lng || null,
        adcode: geocoderResult.ad_info && geocoderResult.ad_info.adcode || null,
        province: geocoderResult.address_components && geocoderResult.address_components.province || null,
        city: geocoderResult.address_components && geocoderResult.address_components.city || null,
        district: geocoderResult.address_components && geocoderResult.address_components.district || null,
        street: geocoderResult.address_components && geocoderResult.address_components.street || null,
        street_number: geocoderResult.address_components && geocoderResult.address_components.street_number || null,
        level: geocoderResult.level || null
      };
      param.success(data, {
        geocoderResult: geocoderResult,
        geocoderSimplify: geocoderSimplify
      })
    } else if (feature == 'getCityList') {
      var provinceResult = data.result[0];
      var cityResult = data.result[1];
      var districtResult = data.result[2];
      param.success(data, {
        provinceResult: provinceResult,
        cityResult: cityResult,
        districtResult: districtResult
      })
    } else if (feature == 'getDistrictByCityId') {
      var districtByCity = data.result[0];
      param.success(data, districtByCity)
    } else if (feature == 'calculateDistance') {
      var calculateDistanceResult = data.result.elements;
      var distance = [];
      for (var i = 0; i < calculateDistanceResult.length; i++) {
        distance.push(calculateDistanceResult[i].distance)
      }
      param.success(data, {
        calculateDistanceResult: calculateDistanceResult,
        distance: distance
      })
    } else if (feature == 'direction') {
      var direction = data.result.routes;
      param.success(data, direction)
    } else {
      param.success(data)
    }
  },
  buildWxRequestConfig(param, options, feature) {
    var that = this;
    options.header = {
      "content-type": "application/json"
    };
    options.method = 'GET';
    options.success = function(res) {
      var data = res.data;
      if (data.status === 0) {
        that.handleData(param, data, feature)
      } else {
        param.fail(data)
      }
    };
    options.fail = function(res) {
      res.statusCode = ERROR_CONF.WX_ERR_CODE;
      param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg))
    };
    options.complete = function(res) {
      var statusCode = +res.statusCode;
      switch (statusCode) {
        case ERROR_CONF.WX_ERR_CODE:
          {
            param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
            break
          }
        case ERROR_CONF.WX_OK_CODE:
          {
            var data = res.data;
            if (data.status === 0) {
              param.complete(data)
            } else {
              param.complete(that.buildErrorConfig(data.status, data.message))
            }
            break
          }
        default:
          {
            param.complete(that.buildErrorConfig(ERROR_CONF.SYSTEM_ERR, ERROR_CONF.SYSTEM_ERR_MSG))
          }
      }
    };
    return options
  },
  locationProcess(param, locationsuccess, locationfail, locationcomplete) {
    var that = this;
    locationfail = locationfail || function(res) {
      res.statusCode = ERROR_CONF.WX_ERR_CODE;
      param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg))
    };
    locationcomplete = locationcomplete || function(res) {
      if (res.statusCode == ERROR_CONF.WX_ERR_CODE) {
        param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg))
      }
    };
    if (!param.location) {
      that.getWXLocation(locationsuccess, locationfail, locationcomplete)
    } else if (that.checkLocation(param)) {
      var location = Utils.getLocationParam(param.location);
      locationsuccess(location)
    }
  }
};
class QQMapWX {
  constructor(options) {
    if (!options.key) {
      throw Error('key值不能为空')
    }
    this.key = options.key
  };
  search(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    if (!Utils.checkKeyword(options)) {
      return
    }
    var requestParam = {
      keyword: options.keyword,
      orderby: options.orderby || '_distance',
      page_size: options.page_size || 10,
      page_index: options.page_index || 1,
      output: 'json',
      key: that.key
    };
    if (options.address_format) {
      requestParam.address_format = options.address_format
    }
    if (options.filter) {
      requestParam.filter = options.filter
    }
    var distance = options.distance || "1000";
    var auto_extend = options.auto_extend || 1;
    var region = null;
    var rectangle = null;
    if (options.region) {
      region = options.region
    }
    if (options.rectangle) {
      rectangle = options.rectangle
    }
    var locationsuccess = function(result) {
      if (region && !rectangle) {
        requestParam.boundary = "region(" + region + "," + auto_extend + "," + result.latitude + "," + result.longitude + ")";
        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'search')
        }
      } else if (rectangle && !region) {
        requestParam.boundary = "rectangle(" + rectangle + ")";
        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'search')
        }
      } else {
        requestParam.boundary = "nearby(" + result.latitude + "," + result.longitude + "," + distance + "," + auto_extend + ")";
        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'search')
        }
      }
      wx.request(Utils.buildWxRequestConfig(options, {
        url: URL_SEARCH,
        data: requestParam
      }, 'search'))
    };
    Utils.locationProcess(options, locationsuccess)
  };
  getSuggestion(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    if (!Utils.checkKeyword(options)) {
      return
    }
    var requestParam = {
      keyword: options.keyword,
      region: options.region || '全国',
      region_fix: options.region_fix || 0,
      policy: options.policy || 0,
      page_size: options.page_size || 10,
      page_index: options.page_index || 1,
      get_subpois: options.get_subpois || 0,
      output: 'json',
      key: that.key
    };
    if (options.address_format) {
      requestParam.address_format = options.address_format
    }
    if (options.filter) {
      requestParam.filter = options.filter
    }
    if (options.location) {
      var locationsuccess = function(result) {
        requestParam.location = result.latitude + ',' + result.longitude;
        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'suggest')
        }
        wx.request(Utils.buildWxRequestConfig(options, {
          url: URL_SUGGESTION,
          data: requestParam
        }, "suggest"))
      };
      Utils.locationProcess(options, locationsuccess)
    } else {
      if (options.sig) {
        requestParam.sig = Utils.getSig(requestParam, options.sig, 'suggest')
      }
      wx.request(Utils.buildWxRequestConfig(options, {
        url: URL_SUGGESTION,
        data: requestParam
      }, "suggest"))
    }
  };
  reverseGeocoder(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    var requestParam = {
      coord_type: options.coord_type || 5,
      get_poi: options.get_poi || 0,
      output: 'json',
      key: that.key
    };
    if (options.poi_options) {
      requestParam.poi_options = options.poi_options
    }
    var locationsuccess = function(result) {
      requestParam.location = result.latitude + ',' + result.longitude;
      if (options.sig) {
        requestParam.sig = Utils.getSig(requestParam, options.sig, 'reverseGeocoder')
      }
      wx.request(Utils.buildWxRequestConfig(options, {
        url: URL_GET_GEOCODER,
        data: requestParam
      }, 'reverseGeocoder'))
    };
    Utils.locationProcess(options, locationsuccess)
  };
  geocoder(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    if (Utils.checkParamKeyEmpty(options, 'address')) {
      return
    }
    var requestParam = {
      address: options.address,
      output: 'json',
      key: that.key
    };
    if (options.region) {
      requestParam.region = options.region
    }
    if (options.sig) {
      requestParam.sig = Utils.getSig(requestParam, options.sig, 'geocoder')
    }
    wx.request(Utils.buildWxRequestConfig(options, {
      url: URL_GET_GEOCODER,
      data: requestParam
    }, 'geocoder'))
  };
  getCityList(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    var requestParam = {
      output: 'json',
      key: that.key
    };
    if (options.sig) {
      requestParam.sig = Utils.getSig(requestParam, options.sig, 'getCityList')
    }
    wx.request(Utils.buildWxRequestConfig(options, {
      url: URL_CITY_LIST,
      data: requestParam
    }, 'getCityList'))
  };
  getDistrictByCityId(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    if (Utils.checkParamKeyEmpty(options, 'id')) {
      return
    }
    var requestParam = {
      id: options.id || '',
      output: 'json',
      key: that.key
    };
    if (options.sig) {
      requestParam.sig = Utils.getSig(requestParam, options.sig, 'getDistrictByCityId')
    }
    wx.request(Utils.buildWxRequestConfig(options, {
      url: URL_AREA_LIST,
      data: requestParam
    }, 'getDistrictByCityId'))
  };
  calculateDistance(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    if (Utils.checkParamKeyEmpty(options, 'to')) {
      return
    }
    var requestParam = {
      mode: options.mode || 'walking',
      to: Utils.location2query(options.to),
      output: 'json',
      key: that.key
    };
    if (options.from) {
      options.location = options.from
    }
    if (requestParam.mode == 'straight') {
      var locationsuccess = function(result) {
        var locationTo = Utils.getEndLocation(requestParam.to);
        var data = {
          message: "query ok",
          result: {
            elements: []
          },
          status: 0
        };
        for (var i = 0; i < locationTo.length; i++) {
          data.result.elements.push({
            distance: Utils.getDistance(result.latitude, result.longitude, locationTo[i].lat, locationTo[i].lng),
            duration: 0,
            from: {
              lat: result.latitude,
              lng: result.longitude
            },
            to: {
              lat: locationTo[i].lat,
              lng: locationTo[i].lng
            }
          })
        }
        var calculateResult = data.result.elements;
        var distanceResult = [];
        for (var i = 0; i < calculateResult.length; i++) {
          distanceResult.push(calculateResult[i].distance)
        }
        return options.success(data, {
          calculateResult: calculateResult,
          distanceResult: distanceResult
        })
      };
      Utils.locationProcess(options, locationsuccess)
    } else {
      var locationsuccess = function(result) {
        requestParam.from = result.latitude + ',' + result.longitude;
        if (options.sig) {
          requestParam.sig = Utils.getSig(requestParam, options.sig, 'calculateDistance')
        }
        wx.request(Utils.buildWxRequestConfig(options, {
          url: URL_DISTANCE,
          data: requestParam
        }, 'calculateDistance'))
      };
      Utils.locationProcess(options, locationsuccess)
    }
  };
  direction(options) {
    var that = this;
    options = options || {};
    Utils.polyfillParam(options);
    if (Utils.checkParamKeyEmpty(options, 'to')) {
      return
    }
    var requestParam = {
      output: 'json',
      key: that.key
    };
    if (typeof options.to == 'string') {
      requestParam.to = options.to
    } else {
      requestParam.to = options.to.latitude + ',' + options.to.longitude
    }
    var SET_URL_DIRECTION = null;
    options.mode = options.mode || MODE.driving;
    SET_URL_DIRECTION = URL_DIRECTION + options.mode;
    if (options.from) {
      options.location = options.from
    }
    if (options.mode == MODE.driving) {
      if (options.from_poi) {
        requestParam.from_poi = options.from_poi
      }
      if (options.heading) {
        requestParam.heading = options.heading
      }
      if (options.speed) {
        requestParam.speed = options.speed
      }
      if (options.accuracy) {
        requestParam.accuracy = options.accuracy
      }
      if (options.road_type) {
        requestParam.road_type = options.road_type
      }
      if (options.to_poi) {
        requestParam.to_poi = options.to_poi
      }
      if (options.from_track) {
        requestParam.from_track = options.from_track
      }
      if (options.waypoints) {
        requestParam.waypoints = options.waypoints
      }
      if (options.policy) {
        requestParam.policy = options.policy
      }
      if (options.plate_number) {
        requestParam.plate_number = options.plate_number
      }
    }
    if (options.mode == MODE.transit) {
      if (options.departure_time) {
        requestParam.departure_time = options.departure_time
      }
      if (options.policy) {
        requestParam.policy = options.policy
      }
    }
    var locationsuccess = function(result) {
      requestParam.from = result.latitude + ',' + result.longitude;
      if (options.sig) {
        requestParam.sig = Utils.getSig(requestParam, options.sig, 'direction', options.mode)
      }
      wx.request(Utils.buildWxRequestConfig(options, {
        url: SET_URL_DIRECTION,
        data: requestParam
      }, 'direction'))
    };
    Utils.locationProcess(options, locationsuccess)
  }
};
module.exports = QQMapWX;